Indexes in SQL
Speed up your SQL queries with our Indexes Cheat Sheet! Learn how to create and optimize indexes to dramatically improve database performance.
62. CREATE INDEX: Create an Index on a Table
CREATE INDEX idx_department ON employees (department);
This query creates an index named idx_department on the department column of the employees table.
63. DROP INDEX: Remove an Index
DROP INDEX IF EXISTS idx_department;
This query drops the idx_department index if it exists.
SQL Cheat Sheet
In this article, we will explore the ultimate SQL cheat sheet with the PDF, covering a wide range of SQL commands, Joins in SQL, CRUD Operations, SQL Trigger, SQL Transactions, and advanced topics to help master SQL effectively.
SQL (Structured Query Language) is a Query language used for managing and manipulating relational databases databases. It allows users to interact with databases. SQL allows users to perform various tasks such as querying data, updating data, inserting new records, deleting records, creating and modifying database schemas, and managing permissions.
Table of Content
- Create a Database in SQL
- Creating Data in SQL
- Reading/Querying Data in SQL
- Updating/Manipulating Data in SQL
- Deleting Data in SQL
- Filtering Data in SQL
- SQL Operator
- Aggregation Data in SQL
- Constraints in SQL
- Joins in SQL
- SQL Functions
- Subqueries in SQL
- Views in SQL
- Indexes in SQL
- Transactions in SQL
- Advanced Mixed Data in SQL
- SQL Cheat Sheet PDF
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